Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6250187 | Screwdriver with an impact device | De-Cheng Ju | 2001-06-26 |
| 6234049 | Tool having a swing head rotatable within a small space | De-Cheng Ju | 2001-05-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6250187 | Screwdriver with an impact device | De-Cheng Ju | 2001-06-26 |
| 6234049 | Tool having a swing head rotatable within a small space | De-Cheng Ju | 2001-05-22 |